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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Semi-quantitative analysis for FTIR spectra of Al _2O _3-PbO-B _2O -3-SiO _2 glasses
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Semi-quantitative analysis for FTIR spectra of Al _2O _3-PbO-B _2O -3-SiO _2 glasses

机译：Al _2O _3-PbO-B _2O -3-SiO _2玻璃的FTIR光谱半定量分析

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摘要

A series of glass of the molar formula xAl _2O _3-(50-x) PbO-25B _2O _3-25SiO _2 with x:2.5-17.5 with step of 2.5 mol.% was prepared and measured for, density, molar volume and infrared absorption. A semiquantitative analysis of the IR spectra was performed. It was found that each oxide would contribute in density with a specific factor. The density factor related to PbO is markedly higher than that of the other two oxides represent the glass skeleton which means that the content of PbO is the main factor affecting the density. The depolymerization of the whole glass skeleton increases with increasing the content of Al _2O _3. There is a competition between the role of PbO and Al _2O _3 in changing the value of N 4 and the crosslinking of the glass network. The silicate network tends to be distinguished from the reminder of the whole glass network with increasing alumina. The IR band located near 700 cm - 1 was suggested to be due to the vibrations of bridging oxygens between trigonal boron atoms. An essential change in the role of PbO in these glasses from glass modifier to glass former occurred around 12 mol.% Al _2O _3.
机译：制备了一系列摩尔比为xAl _2O _3-（50-x）PbO-25B _2O _3-25SiO _2的玻璃，其中x：2.5-17.5，步长为2.5摩尔％，并测量了密度，摩尔体积和红外光谱吸收。进行了IR光谱的半定量分析。已发现每种氧化物将以特定因子贡献密度。与PbO有关的密度因子明显高于其他两种代表玻璃骨架的氧化物，这意味着PbO的含量是影响密度的主要因素。整个玻璃骨架的解聚随着Al _2O _3含量的增加而增加。在改变N 4的值和玻璃网络的交联过程中，PbO和Al _2O _3的作用之间存在竞争。随着氧化铝的增加，硅酸盐网络往往与整个玻璃网络的提醒区分开。红外波段位于700 cm-1附近是由于三角硼原子之间桥连氧的振动所致。这些玻璃中PbO的作用从玻璃改性剂到玻璃形成剂的本质变化发生在12摩尔％Al _2O _3左右。

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